mcs/class/System/System.Net/SocketAddress.cs

   1 //
   2 // System.Net.SocketAddress.cs
   3 //
   4 // Author:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //   Dick Porter (dick@ximian.com)
   7 //
   8 // (C) Ximian, Inc.  http://www.ximian.com
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Net.Sockets;
  33
  34 namespace System.Net {
  35
  36         public class SocketAddress {
  37                 private byte[] data;
  38
  39                 public SocketAddress (AddressFamily family, int size)
  40                 {
  41                         if(size<2) {
  42                                 throw new ArgumentOutOfRangeException("size is too small");
  43                         }
  44
  45                         data=new byte[size];
  46                         data[0]=(byte)family;
  47                         data[1]=(byte) ((int) family >> 8);
  48                 }
  49
  50                 public SocketAddress (AddressFamily family)
  51                         : this (family, 32)
  52                 {
  53                 }
  54
  55                 //LAMESPEC: the MS doc about this class is wrong. The size is not stored in byte 1. Instead
  56                 // byte [0] and byte [1] hold the family (little endian).
  57                 public AddressFamily Family {
  58                         get {
  59                                 return (AddressFamily) (data [0] + (data [1] << 8));
  60                         }
  61                 }
  62
  63                 public int Size {
  64                         get {
  65                                 return data.Length;
  66                         }
  67                 }
  68
  69                 public byte this [ int offset ] {
  70                         get {
  71                                 return(data[offset]);
  72                         }
  73
  74                         set {
  75                                 data[offset]=value;
  76                         }
  77                 }
  78
  79                 public override string ToString() {
  80                         string af=((AddressFamily)data[0]).ToString();
  81                         int size = data.Length;
  82                         string ret=af+":"+size+":{";
  83
  84                         for(int i=2; i<size; i++) {
  85                                 int val=(int)data[i];
  86                                 ret=ret+val;
  87                                 if(i<size-1) {
  88                                         ret=ret+",";
  89                                 }
  90                         }
  91
  92                         ret=ret+"}";
  93
  94                         return(ret);
  95                 }
  96
  97                 public override bool Equals (object obj)
  98                 {
  99                         if (obj is System.Net.SocketAddress &&
 100                             ((System.Net.SocketAddress) obj).data.Length == data.Length){
 101                                 byte [] otherData = ((System.Net.SocketAddress) obj).data;
 102                                 for (int i = 0; i < data.Length; i++)
 103                                         if (otherData [i] != data [i])
 104                                                 return false;
 105
 106                                 return true;
 107                         }
 108
 109                         return false;
 110                 }
 111
 112                 public override int GetHashCode ()
 113                 {
 114                         int code = 0;
 115
 116                         for (int i = 0; i < data.Length; i++)
 117                                 code += data [i] + i;
 118
 119                         return code;
 120                 }
 121         }
 122 }